and at the end of the day, the president said thank you, and you'll have my decision tomorrow and he got up and he walked out of the situation room, up the stairs, and across the famous colonnade and went back to his residence and the decision rested with him. one person on behalf of over 300 million americans making that decision. >> were you nervous grappling with this issue? how much did it weigh on you? how much did you take it back with you home? how much was it sort of an all-consuming issue? >> you know, we were doing the rest of our business as well. it was part of the operational security. as is the style of this president, it was very methodical, very organized, moving through the issues one by one, and, of course, we thought about it a lot, and obviously he thought about it a lot having to make the final decision and he did that night and again the next morning at around 8:00 i heard from him and he said meet me in the diplomatic room, and myself and john brennan and dennis mcdonough and chief of staff bill daley met him and he turned to us and said i made my decision, we're going to go with a raid. write up the orders.